在数组上计算字符串长度(strlen)并返回短于最大长度的索引求简便方法

嘿，给你个高效的自动化实现，完美匹配需求：

<?php
$string = 'Lousaxafro pi Lowaxaskaxafro.^^Kuaxalaxankoow te dincloaxaso yeep axaccorolaxatien fupp axaghtick velo telquo pi whelsopewol te yeep ockino.^^Tep eb zo rino axail birtols wirr losurt din fottol buor obbicioncupp.^^Kivo yeep mohicro pit fottol evolaxarr dolbelmaxanco axas worr axas up axawosemo axagglossivo seuctick ockino.^^Oaxasupp te dinchaxarr!';
$parts = explode('^^', $string);
$lengths = array_map('strlen', $parts);
$result = array_keys(array_filter($lengths, fn($l) => $l < max($lengths)));
print_r($result);
?>

全程用PHP内置函数，自动分割字符串、计算长度、筛选索引，保留^^分隔逻辑。

内容的提问来源于stack exchange，提问作者Brian Bruman